I'm learning DFRPG, having no prior experience with the FATE system. One thing I really like is the idea that we can --and should-- create our own stunts and powers... but I'm not sure I've really got the hang of it yet.
To that end, how would one design a balanced power with these parameters? (Inspired by a player's character concept, which should explain any weirdness.)
- Costs one Refresh [-1].
- Has a very narrow scope: invisibility. Must be able to make the user of the power invisible, but if it can have a range beyond personal then that's a shiny bonus.
- Is phrased as a block (YS210), or a variant on the block mechanic, against checks to notice the target(s) of the power.
Guidelines for designing powers are on YS158, which lead back to the guidelines for stunt design on YS147.
Looking for baselines, I found the "minor veils" effect of the Faerie Magic power called Glamours [-2] (YS166), but it is not a block. The invisibility spell example called "Quick Veil" (evocation, spirit) on YS295 is a defensive block, but both of these are part of a larger package of effects and options.
This is my attempt, which I suspect is probably underpowered given its narrow scope, and almost certainly poorly worded:
You can use the basic glamours of the fey to vanish from mortal sight.
Skills Affected: Discipline, Deceit
Effect: You prevent most attempts to notice your presence. This is a block action that opposes checks to notice you (some supernatural effects may ignore this block as the GM sees fit): roll Discipline or Deceit with a +2 bonus to determine the strength of the block. In addition to any Stealth rolls you might make, a character must meet or beat your block in order to notice you. You may spend shifts to prolong the block's duration at a rate of one exchange per shift.
Both entirely new designs and critiques of my design attempt are welcome. In either case, an explanation of why something is or is not appropriate for a [-1] power of this scope would be appreciated.